Combined spine and sternum retractor frame



FIG. 1 is an isometric view of a combined spine and sternum retractor frame showing the top, the left side, and the front of our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged cross-sectional view taken along line 8--8 of FIG. 5. 

The ornamental design for a combined spine and sternum retractor frame, as shown and described. 